diff --git a/Cargo.toml b/Cargo.toml
index 99a1bc23..d7f4eb68 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ license = "MIT/Apache-2.0"
 repository = "https://github.com/nox/serde_urlencoded"
 documentation = "https://docs.rs/serde_urlencoded"
 description = "`x-www-form-urlencoded` meets Serde"
+categories = ["encoding", "web-programming"]
 keywords = ["serde", "serialization", "urlencoded"]
 
 [lib]